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Diffstat (limited to '')
-rw-r--r-- | js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/BigInt/return-index-predicate-result-is-true.js | 58 |
1 files changed, 58 insertions, 0 deletions
diff --git a/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/BigInt/return-index-predicate-result-is-true.js b/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/BigInt/return-index-predicate-result-is-true.js new file mode 100644 index 0000000000..28a0bff79e --- /dev/null +++ b/js/src/tests/test262/built-ins/TypedArray/prototype/findLastIndex/BigInt/return-index-predicate-result-is-true.js @@ -0,0 +1,58 @@ +// Copyright (C) 2021 Microsoft. All rights reserved. +// This code is governed by the BSD license found in the LICENSE file. +/*--- +esid: sec-%typedarray%.prototype.findlastindex +description: > + Return index if predicate return a boolean true value. +info: | + %TypedArray%.prototype.findLastIndex ( predicate [ , thisArg ] ) + + ... + 5. Let k be len - 1. + 6. Repeat, while k ≥ 0 + ... + c. Let testResult be ! ToBoolean(? Call(predicate, thisArg, « kValue, 𝔽(k), O »)). + d. If testResult is true, return 𝔽(k). + ... +includes: [testBigIntTypedArray.js] +features: [BigInt, Symbol, TypedArray, array-find-from-last] +---*/ + +testWithBigIntTypedArrayConstructors(function(TA) { + var sample = new TA([39n, 3n, 9n]); + var called = 0; + + var result = sample.findLastIndex(function() { + called++; + return true; + }); + + assert.sameValue(result, 2, "returned true on sample[2]"); + assert.sameValue(called, 1, "predicate was called once"); + + called = 0; + result = sample.findLastIndex(function(val) { + called++; + return val === 39n; + }); + + assert.sameValue(called, 3, "predicate was called three times"); + assert.sameValue(result, 0, "returned true on sample[0]"); + + result = sample.findLastIndex(function() { return "string"; }); + assert.sameValue(result, 2, "ToBoolean(string)"); + + result = sample.findLastIndex(function() { return {}; }); + assert.sameValue(result, 2, "ToBoolean(object)"); + + result = sample.findLastIndex(function() { return Symbol(""); }); + assert.sameValue(result, 2, "ToBoolean(symbol)"); + + result = sample.findLastIndex(function() { return 1; }); + assert.sameValue(result, 2, "ToBoolean(number)"); + + result = sample.findLastIndex(function() { return -1; }); + assert.sameValue(result, 2, "ToBoolean(negative number)"); +}); + +reportCompare(0, 0); |